Floral biology and phenological studies of Datura metel L. in Tripura, Northeast India, with special reference to floral morphotypes

Datura metel L. is an important medicinal plants of Tripura. There are four floral morpho-types found throughout India. The floral biology of four morpho-types of D. metel L. collected from different places of Tripura state have been investigated based on their morphological and palynological study. Initiation of the floral bud, anthesis, pollen viability, pollen germination, and pollen production are the topics covered in the present study. The present study includes photographic representations and UPGMA dendrogram for quick identification, as well as a detailed explanation of four morpho-types of the species.